Most of the time I use the power 95 moves. there are situations when I use Fire Blast, Thunder, Blizzard and Hydro pump though. I use Fire Blast on most physical sweepers to whom I want to give a move for countering Skarmory (Gyrados, Machamp, Aerodactyl, Exploud, Snorlax, Slaking, Muk, Salamence, Weezing, Nidoking, etc.). I use Thunder on Kyogre teams and on thunderdancers (only in-game of course). I use Blizzard in RBY It had a high chance of freezing then, and a lot of stuff needs it for killing Rhydon, Golem, Veusaur and Exeggcutor in 1 hit (or 2 hits). I use Hydro Pump in double battles and on stuff like Swampert and special sweeping Gyrados and Elemence.